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The digestive system Quiz for Grade 7

10 science questions on the digestive system with answers, written for Grade 7. Use it as it is, change any question, print it with an answer key, or give it online and let it grade itself.

1.
What is the primary function of the small intestine? (Multiple choice)
  1. To absorb nutrients from food
  2. To store waste before excretion
  3. To break down food mechanically
  4. To produce digestive enzymes
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To absorb nutrients from food

The small intestine absorbs nutrients from digested food into the bloodstream.
2.
Which organ produces bile to help digest fats? (Multiple choice)
  1. Liver
  2. Stomach
  3. Large intestine
  4. Pancreas
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Liver

The liver produces bile which helps break down fats during digestion.
3.
Where does most chemical digestion occur? (Multiple choice)
  1. Stomach
  2. Small intestine
  3. Large intestine
  4. Mouth
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Small intestine

Most chemical digestion happens in the small intestine where enzymes break down food.
4.
Which part of the digestive system stores and compacts waste? (Multiple choice)
  1. Large intestine
  2. Esophagus
  3. Stomach
  4. Small intestine
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Large intestine

The large intestine absorbs water and stores waste before elimination.
5.
The stomach uses acids to help digest food. (True or false)
  1. True
  2. False
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True

The stomach produces acid to break down food chemically.
6.
The esophagus is where most nutrient absorption takes place. (True or false)
  1. True
  2. False
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False

Nutrient absorption mainly occurs in the small intestine, not the esophagus.
7.
Name the tube that connects the mouth to the stomach. (Identification)
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Esophagus

The esophagus is the muscular tube transporting food to the stomach.
8.
The _____ produces enzymes that help digest carbohydrates, proteins, and fats. (Fill in the blank)
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Pancreas

The pancreas produces digestive enzymes for breaking down food.
9.
Match each digestive organ with its main role. (Matching type)
1. Stomach
A. Absorbs water and forms waste
2. Liver
B. Absorbs nutrients
3. Small intestine
C. Breaks down food with acid
4. Large intestine
D. Produces bile
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1 = Breaks down food with acid; 2 = Produces bile; 3 = Absorbs nutrients; 4 = Absorbs water and forms waste

Each organ has a specific role in digestion and absorption.
10.
List four organs involved in the digestive system. (Enumeration)
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Mouth, Esophagus, Stomach, Small intestine

These organs all play key roles in digesting and processing food.